The Preview application is included with every Mac. Among other things, this useful utility allows you to annotate your PDF files with highlighted text, shapes, lines, arrows, text boxes, sticky notes and more. Sandro Cuccia shows you how.

Java has been showing its security flaws a lot lately, pushing some OS X users to remove the platform from their Macs. Killing Java outright is great for some Mac users, but there are plenty that need it for apps like Photoshop and InDesign, so simply disabling it in your Web browser is a nice compromise, and it's easy to do.

A new malware threat for the Mac has been discovered that can work around OS X's Gatekeeper security feature. The threat, dubbed "Pintsized," can create a secure remote connection to victim's user accounts, and then scour their hard drive for personal information.

As promised, Apple released an update for Java on Tuesday that addresses an exploit used to attack some of Apple's own Macs. Java for OS X 2013-001 1.0 updates Apple's Java implementation of Java SE 6 to version 1.6.0_41, and is being released for OS X Lion and Mountain Lion. [Updated with additional information]

Using Finder's "Go to Folder" command is an easy and quick way to jump around in your file system. Need to go to a hidden folder or a folder buried several layers deep? No problem. Also, you can use this same feature in another place around your Mac, a place you may not have expected. Ooooo, the suspense is killing us.

Following up on a previous article on using the Home Folder in OS X, Sandro Cuccia discusses the advantages of using the Shared Folder and shows you how.

Apple is continuing to extensively test the next maintenance update to OS X Mountain Lion. The tenth prerelease build of 10.8.3 was released to developers Wednesday. Notably, the build fixes the file bug reported earlier this week.

So you need to use the copyright symbol or an ellipsis while you're writing a document. Did you know that there's an easy way to figure out what the keyboard shortcuts are for a variety of special characters on your Mac? Yup, it's simple, and once you know the shortcuts for the symbols you use most frequently, you'll be a faster typist and even more impressive than you already are. And we know you're already pretty impressive.

Apple released OS X Server 2.21 on Monday with improved support for managing Time Machine backups and Mac App Store downloads. OS X Server is an add on package for OS X Mountain Lion that adds server features.

What will Apple call OS X 10.9? Inquiring minds want to know, and we think we may have it.